Seasonal differences in the trace metal and macrominerals in shrimp (Parapenaus longirostris) from Marmara Sea.

Seasonal changes in micromineral and macromineral concentrations in tissues of shrimp (Parapenaus longirostris) from Marmara Sea were measured for a 1-year period by using inductively coupled plasma mass spectrometer. The contents of investigated minerals in shrimp were found to be in the range of 0.374-0.716 mg/kg for Hg, 0.526-1.286 mg/kg for Se, 0.007-0.098 mg/kg for Cd, 0.197-0.230 mg/kg for Pb, 5.194-7.600 mg/kg for Cu, 11.090-17.707 mg/kg for Zn, 22.128-38.850 mg/kg for Al, 61.769-88.437 mg/kg for Fe, 0.262-0.368 mg/kg for As, 0.081-0.249 mg/kg for Co, 0.850-1.459 mg/kg for Mn, 0.316-0.507 mg/kg for Ni, 0.032-0.107 mg/kg for Sn, 1.262-1.502 mg/kg for Cr, 2,813.770-3,317.819 mg/kg for Na, 3,702.230-4,479.648 mg/kg for K, 495.782-650.280 mg/kg for Mg, 790.407-1,016.112 mg/kg for Ca, 2,685.873-3,657.658 mg/kg for P, and 0.454-0.942 mg/kg for I. The levels of Hg found in autumn were higher than maximum levels proposed by the European legislation.